18730412 has 18 divisors (see below), whose sum is σ = 33428388. Its totient is φ = 9182992.

The previous prime is 18730403. The next prime is 18730429. The reversal of 18730412 is 21403781.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10403 + ... + 12069.

Almost surely, 2^18730412 is an apocalyptic number.

It is an amenable number.

18730412 is a deficient number, since it is larger than the sum of its proper divisors (14697976).

18730412 is a wasteful number, since it uses less digits than its factorization.

18730412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1777 (or 1722 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 18730412 is about 4327.8646004698. The cubic root of 18730412 is about 265.5720973676.

The spelling of 18730412 in words is "eighteen million, seven hundred thirty thousand, four hundred twelve".